php - Make a select query from two table with where clause. -


i have 2 variables $code , $name. $code have tutor's code or institute's code and$name have tutor's name or institute's name.

this way names come $code , $name

// check tutor or institute if ( $tutorcode && $tutorname) {     $code = $tutorcode;     $name = $tutorname; } elseif ( $institutecode && $institutename) {     $code = $institutecode;     $name = $institutename; }

my problem need email address contact table according $code , $name. need check 2 table tutor , institute belong code , name.

tutor , institute table have contact_id , contact table have contact_id. tutor table have tutor_code , tutor_name.
institute table have institute_code , institute_name

i tried this. can't check in both tables.

$q = "select email tutor        tutor_code = $code , tutor_name = $name"

hope me. thank you.

you can union both tables

select  email, code, name (     select email, tutor_code code, tutor_name name tutor     union     select email, institute_code  code, institute_name name institute ) sub   code = $code ,         name = '$name'

or

select  s.*, c.*         (             select  contact_id,                      tutor_code code,                      tutor_name name,                     'tutor' sourcetbl                tutor               tutor_code = $code ,                     tutor_name = '$name'             union             select  contact_id,                     institute_code  code,                      institute_name name,                     'institute' sourcetbl                institute               institute_code = $code ,                     institute_name = '$name'         ) s         inner join contact c             on s.contact_id = c.contact_id

keep mind return duplicate record if both records exists on both table because of specifying all in union. if want unique records, remove all.


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